/*******************************************************************************
 * Copyright (c) 2000, 2007 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.wst.jsdt.internal.ui.actions;

import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IMenuListener;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.text.ITextSelection;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.actions.ActionGroup;
import org.eclipse.ui.keys.IBindingService;
import org.eclipse.wst.jsdt.internal.ui.javaeditor.CompilationUnitEditor;

public class SurroundWithActionGroup extends ActionGroup {
	
	private CompilationUnitEditor fEditor;
//	private SurroundWithTryCatchAction fSurroundWithTryCatchAction;
	private final String fGroup;
	
	public SurroundWithActionGroup(CompilationUnitEditor editor, String group) {
		fEditor= editor;
		fGroup= group;
//		fSurroundWithTryCatchAction= createSurroundWithTryCatchAction(fEditor);
	}
	
	public void fillActionBars(IActionBars actionBar) {
//		actionBar.setGlobalActionHandler(JdtActionConstants.SURROUND_WITH_TRY_CATCH, fSurroundWithTryCatchAction);
	}
	
	/**
	 * The Menu to show when right click on the editor
	 * {@inheritDoc}
	 */
	public void fillContextMenu(IMenuManager menu) {
		ISelectionProvider selectionProvider= fEditor.getSelectionProvider();
		if (selectionProvider == null) {
			return;
		}
		
		ISelection selection= selectionProvider.getSelection();
		if (!(selection instanceof ITextSelection)) {
			return;
		}
		
		ITextSelection textSelection= (ITextSelection)selection;
		if (textSelection.getLength() == 0) {
			return;
		}
		
		String menuText= ActionMessages.SurroundWithTemplateMenuAction_SurroundWithTemplateSubMenuName;
				
		String shortcutString= getShortcutString();
		if (shortcutString != null) {
			menuText= menuText + '\t' + shortcutString;
		}
		
		MenuManager subMenu = new MenuManager(menuText, SurroundWithTemplateMenuAction.SURROUND_WITH_QUICK_MENU_ACTION_ID);	
		menu.appendToGroup(fGroup, subMenu);	
		subMenu.add(new Action() {});
		subMenu.addMenuListener(new IMenuListener() {
			public void menuAboutToShow(IMenuManager manager) {
				manager.removeAll();
				SurroundWithTemplateMenuAction.fillMenu(manager, fEditor);
			}
		});
	}
	
	private String getShortcutString() {
		IBindingService bindingService= (IBindingService)PlatformUI.getWorkbench().getAdapter(IBindingService.class);
		if (bindingService == null) {
			return null;
		}
		return bindingService.getBestActiveBindingFormattedFor(SurroundWithTemplateMenuAction.SURROUND_WITH_QUICK_MENU_ACTION_ID);
	}
	
//	private static SurroundWithTryCatchAction createSurroundWithTryCatchAction(CompilationUnitEditor editor) {
//		SurroundWithTryCatchAction result= new SurroundWithTryCatchAction(editor);
//		result.setText(ActionMessages.SurroundWithTemplateMenuAction_SurroundWithTryCatchActionName);
//		result.setActionDefinitionId(IJavaEditorActionDefinitionIds.SURROUND_WITH_TRY_CATCH);
//		editor.setAction("SurroundWithTryCatch", result); //$NON-NLS-1$		
//		return result;
//	}
}
